A connector assembly for an implantable stimulating device employs a lead-locking spring clip to reliably provide a mechanical and electrical connection between the terminal pin of an electrode lead and the device, while reducing the user interaction required during implantation and disconnection. No...http://www.google.co.uk/patents/US5252090?utm_source=gb-gplus-sharePatent US5252090 - Self-locking implantable stimulating lead connector
